DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q4 2015 (← Previous) (Next →)

Filing Date: Feb 16, 2016

Total Value: $2.467B (88.4% shares, 11.6% debt)

Holdings (109)

HORIZON PHARMA PLC 10.3%
Value $253M Shares 11,684,801 Est. Cost Unrealized
NXSTAGE MEDICAL INC 4.1%
Value $101M Shares 4,589,000 Est. Cost Unrealized
DYAX CORP 3.4%
Value $84.35M Shares 2,242,073 Est. Cost Unrealized
ADEPTUS HEALTH INC 2.9%
Value $71.31M Shares 1,307,908 Est. Cost Unrealized
GLAXOSMITHKLINE PLC 2.7%
Value $67.6M Shares 1,675,385 Est. Cost Unrealized
AETNA INC NEW 2.6%
Value $63.95M Shares 591,465 Est. Cost Unrealized
DVA DAVITA HEALTHCARE PARTNERS I 2.3%
Value $57.3M Shares 822,000 Est. Cost Unrealized
MYLAN N V 2.3%
Value $57.1M Shares 1,056,000 Est. Cost Unrealized
VNDA VANDA PHARMACEUTICALS INC 2.3%
Value $55.83M Shares 5,996,691 Est. Cost Unrealized
GILD GILEAD SCIENCES INC 2.2%
Value $53.83M Shares 532,000 Est. Cost Unrealized
TEVA TEVA PHARMACEUTICAL INDS LTD 2.2%
Value $53.5M Shares 815,000 Est. Cost Unrealized
FLAMEL TECHNOLOGIES SA 2.0%
Value $49.73M Shares 4,072,809 Est. Cost Unrealized
HEALTHWAYS INC 2.0%
Value $49.09M Shares 51,925,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.7%
Value $42.29M Shares 45,000,000 Est. Cost Unrealized
GLOBAL BLOOD THERAPEUTICS IN 1.5%
Value $37.63M Shares 1,163,811 Est. Cost Unrealized
HEARTWARE INTL INC 1.5%
Value $37.36M Shares 39,226,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.5%
Value $36.84M Shares 8,729,361 Est. Cost Unrealized
TEVA TEVA PHARMACEUTICAL INDS LTD 1.5%
Value $36.1M Shares 550,000 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 1.4%
Value $35.18M Shares 683,749 Est. Cost Unrealized
SAGE THERAPEUTICS INC 1.4%
Value $34.91M Shares 598,854 Est. Cost Unrealized
ENDOLOGIX INC 1.4%
Value $34.6M Shares 40,941,000 Est. Cost Unrealized
XENOPORT INC 1.4%
Value $34.52M Shares 6,287,374 Est. Cost Unrealized
AAC HLDGS INC 1.4%
Value $33.97M Shares 1,782,094 Est. Cost Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 1.4%
Value $33.8M Shares 4,305,288 Est. Cost Unrealized
UNIVERSAL AMERN CORP NEW 1.4%
Value $33.52M Shares 4,789,027 Est. Cost Unrealized
WALGREENS BOOTS ALLIANCE INC 1.3%
Value $32.91M Shares 386,457 Est. Cost Unrealized
EHTH EHEALTH INC 1.3%
Value $32.58M Shares 3,264,588 Est. Cost Unrealized
ENDOLOGIX INC 1.3%
Value $32.55M Shares 30,000,000 Est. Cost Unrealized
HEALTHWAYS INC 1.3%
Value $31.73M Shares 2,465,042 Est. Cost Unrealized
ACCURAY INC 1.3%
Value $30.88M Shares 30,511,000 Est. Cost Unrealized
CRL CHARLES RIV LABS INTL INC 1.2%
Value $30.32M Shares 377,188 Est. Cost Unrealized
NIVALIS THERAPEUTICS INC 1.2%
Value $28.89M Shares 3,732,412 Est. Cost Unrealized
MCK MCKESSON CORP 1.2%
Value $28.53M Shares 144,646 Est. Cost Unrealized
GENOMIC HEALTH INC 1.2%
Value $28.49M Shares 809,432 Est. Cost Unrealized
PCRX PACIRA PHARMACEUTICALS INC 1.2%
Value $28.49M Shares 371,000 Est. Cost Unrealized
FIVE PRIME THERAPEUTICS INC 1.1%
Value $28.22M Shares 680,000 Est. Cost Unrealized
KEMPHARM INC 1.1%
Value $28.21M Shares 1,420,497 Est. Cost Unrealized
PRONAI THERAPEUTICS INC 1.1%
Value $26.94M Shares 1,791,255 Est. Cost Unrealized
RELYPSA INC 1.0%
Value $25.51M Shares 900,281 Est. Cost Unrealized
SPECTRANETICS CORP 0.9%
Value $22.54M Shares 29,831,000 Est. Cost Unrealized
GW PHARMACEUTICALS PLC 0.9%
Value $21.54M Shares 310,122 Est. Cost Unrealized
CTMX CYTOMX THERAPEUTICS INC 0.8%
Value $19.74M Shares 946,022 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 0.8%
Value $19.67M Shares 807,875 Est. Cost Unrealized
PROTEON THERAPEUTICS INC 0.8%
Value $19.63M Shares 1,265,343 Est. Cost Unrealized
RITE AID CORP 0.8%
Value $19.54M Shares 2,492,772 Est. Cost Unrealized
RGNX REGENXBIO INC 0.8%
Value $19.41M Shares 1,169,042 Est. Cost Unrealized
XNCR XENCOR INC 0.7%
Value $18.37M Shares 1,256,612 Est. Cost Unrealized
PACB PACIFIC BIOSCIENCES CALIF IN 0.7%
Value $18.22M Shares 1,388,000 Est. Cost Unrealized
ACHILLION PHARMACEUTICALS IN 0.7%
Value $17.99M Shares 1,667,000 Est. Cost Unrealized
FLUIDIGM CORP DEL 0.7%
Value $17.6M Shares 27,715,000 Est. Cost Unrealized
AXGN AXOGEN INC 0.7%
Value $16.91M Shares 3,381,439 Est. Cost Unrealized
DBV TECHNOLOGIES S A 0.7%
Value $16.77M Shares 461,869 Est. Cost Unrealized
AKARI THERAPEUTICS PLC 0.7%
Value $16.68M Shares 1,150,700 Est. Cost Unrealized
CNC CENTENE CORP DEL 0.7%
Value $16.06M Shares 244,000 Est. Cost Unrealized
MGNX MACROGENICS INC 0.7%
Value $16.04M Shares 517,920 Est. Cost Unrealized
CARDIOVASCULAR SYS INC DEL 0.6%
Value $15.65M Shares 1,035,000 Est. Cost Unrealized
ENDOCHOICE HLDGS INC 0.6%
Value $15.22M Shares 1,823,309 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.6%
Value $14.22M Shares 5,878,015 Est. Cost Unrealized
IMPRIVATA INC 0.6%
Value $13.63M Shares 1,206,418 Est. Cost Unrealized
ALLSCRIPTS HEALTHCARE SOLUTN 0.5%
Value $13.41M Shares 12,400,000 Est. Cost Unrealized
NANOSTRING TECHNOLOGIES INC 0.5%
Value $12.95M Shares 880,622 Est. Cost Unrealized
GLPG GALAPAGOS NV 0.5%
Value $11.51M Shares 183,000 Est. Cost Unrealized
ACCELERON PHARMA INC 0.4%
Value $10.41M Shares 213,491 Est. Cost Unrealized
TRUP TRUPANION INC 0.4%
Value $10.37M Shares 1,062,214 Est. Cost Unrealized
TONIX PHARMACEUTICALS HLDG C 0.4%
Value $10.09M Shares 1,315,551 Est. Cost Unrealized
INVUITY INC 0.4%
Value $9.51M Shares 1,078,218 Est. Cost Unrealized
ESSA PHARMA INC 0.3%
Value $8.499M Shares 1,859,282 Est. Cost Unrealized
HEARTWARE INTL INC 0.3%
Value $8.062M Shares 159,961 Est. Cost Unrealized
FOAMIX PHARMACEUTICALS LTD 0.3%
Value $7.696M Shares 948,934 Est. Cost Unrealized
RIGEL PHARMACEUTICALS INC 0.3%
Value $7.266M Shares 2,397,855 Est. Cost Unrealized
LOXO ONCOLOGY INC 0.3%
Value $7.141M Shares 251,000 Est. Cost Unrealized
ALCOBRA LTD 0.3%
Value $6.719M Shares 1,069,914 Est. Cost Unrealized
NEOS THERAPEUTICS INC 0.3%
Value $6.563M Shares 458,332 Est. Cost Unrealized
VERSARTIS INC 0.2%
Value $6.077M Shares 490,503 Est. Cost Unrealized
OXFORD IMMUNOTEC GLOBAL PLC 0.2%
Value $5.976M Shares 519,670 Est. Cost Unrealized
PSIVIDA CORP 0.2%
Value $5.891M Shares 1,222,110 Est. Cost Unrealized
CAS MED SYS INC 0.2%
Value $5.664M Shares 3,200,000 Est. Cost Unrealized
MYOKARDIA INC 0.2%
Value $5.498M Shares 375,000 Est. Cost Unrealized
ZAFGEN INC 0.2%
Value $5.307M Shares 843,665 Est. Cost Unrealized
EGALET CORP 0.2%
Value $5.258M Shares 477,123 Est. Cost Unrealized
JAZZ INVESTMENTS I LTD 0.2%
Value $5.223M Shares 5,000,000 Est. Cost Unrealized
VYGR VOYAGER THERAPEUTICS INC 0.2%
Value $5.153M Shares 235,294 Est. Cost Unrealized
CATABASIS PHARMACEUTICALS IN 0.2%
Value $5.104M Shares 643,580 Est. Cost Unrealized
ANTARES PHARMA INC 0.2%
Value $4.82M Shares 3,983,440 Est. Cost Unrealized
ALDX ALDEYRA THERAPEUTICS INC 0.2%
Value $4.682M Shares 690,538 Est. Cost Unrealized
TRACON PHARMACEUTICALS INC 0.2%
Value $4.481M Shares 485,000 Est. Cost Unrealized
GENOCEA BIOSCIENCES INC 0.2%
Value $4.412M Shares 837,257 Est. Cost Unrealized
STEADYMED LTD 0.2%
Value $4.39M Shares 1,346,744 Est. Cost Unrealized
SCYNEXIS INC 0.2%
Value $4.324M Shares 696,281 Est. Cost Unrealized
ALLIQUA BIOMEDICAL INC 0.2%
Value $4.023M Shares 1,880,134 Est. Cost Unrealized
GENNQ GENESIS HEALTHCARE INC 0.1%
Value $3.344M Shares 963,564 Est. Cost Unrealized
IMMUNOMEDICS INC 0.1%
Value $3.296M Shares 1,073,640 Est. Cost Unrealized
TRINITY BIOTECH PLC 0.1%
Value $2.893M Shares 246,000 Est. Cost Unrealized
VCYT VERACYTE INC 0.1%
Value $2.823M Shares 392,147 Est. Cost Unrealized
CTI BIOPHARMA CORP 0.1%
Value $2.751M Shares 2,236,832 Est. Cost Unrealized
ACUR ACURA PHARMACEUTICALS INC 0.1%
Value $2.564M Shares 1,025,641 Est. Cost Unrealized
TRILLIUM THERAPEUTICS INC 0.1%
Value $2.173M Shares 172,307 Est. Cost Unrealized
CIDARA THERAPEUTICS INC 0.1%
Value $2.05M Shares 119,456 Est. Cost Unrealized
ELV ANTHEM INC 0.1%
Value $2.043M Shares 14,649 Est. Cost Unrealized
ALPHATEC HOLDINGS INC 0.1%
Value $1.495M Shares 4,982,738 Est. Cost Unrealized
CDNA CAREDX INC 0.1%
Value $1.466M Shares 229,000 Est. Cost Unrealized
BOVIE MEDICAL CORP 0.1%
Value $1.445M Shares 688,229 Est. Cost Unrealized
PALATIN TECHNOLOGIES INC 0.1%
Value $1.328M Shares 2,000,000 Est. Cost Unrealized
STREAMLINE HEALTH SOLUTIONS 0.0%
Value $935K Shares 662,971 Est. Cost Unrealized
CORSICANTO LTD 0.0%
Value $901K Shares 1,000,000 Est. Cost Unrealized
RENNOVA HEALTH INC 0.0%
Value $755K Shares 559,431 Est. Cost Unrealized
COR AMERISOURCEBERGEN CORP 0.0%
Value $311K Shares 3,000 Est. Cost Unrealized
POZEN INC 0.0%
Value $305K Shares 44,583 Est. Cost Unrealized
RENNOVA HEALTH INC 0.0%
Value $285K Shares 645,161 Est. Cost Unrealized